Rock-breaking machine.



G. KIMPLBN. ROCK BREAKING MACHINE. APPLICATION FILED DEO.12, 1910.

LUEKQQQW Patented July 8, 1913.

3 SHEETSSHBET l.

Covw eZius fizlm vlen G. KIMPLEN. ROCK BREAKING MACHINE. APPLICATIONFILED DEU,12, 1910.

LQQKQQQD Patented July 8, 1913-.

3 SHEETS-SHEET 2.

C. KIMPLEN.

ROCK BREAKING MACHINE.

APPLICATION FILED 13110.12, 1910.

Patented July 8, 1913.

3 SHEETS-SHEET 3.

liweai'on' Carr? ehus Z m zmw CORNELIUS KIMPLEN, OF

BOOK-BREAKING MACHINE.

Specification of Letters Patent.

Application filed December 12, 1910; Serial No; 596,813.

To all whom it may concern:

Be it known that I, CORNELIUS 'KIMPLEN, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented a new and useful Improvement in Rock-BreakingMachines, of which the following is a specification.

My invention relates to improvements in rock crushers and has as itsprincipal object the simplification of operating and adjusting mechanismtogether with the strengthening of the main structure. I

The form of crushing jaws is improved and the entire device renderedmore eflicient and safe by a structure which will be ex plained indetail.

. In the drawings with which I have illustrated my device and which formpart of my specification, Figure 1 is an end elevation of my device;Fig. 2 is a section on the line XX, Fig. 1; Fig. 3 is a section on theline YY, Fig. 2; Fig. 4 is a partial plan 1 showing a single crushingunit; Fig. 5 is a side view partly in section of the connection of thelever and main shaft, and Fig. 6 is a section on the line ZZ, Fig. 5.

In the drawings I show a supporting structure made up of a base portionA, supporting pillars B, a head frame C and a hopper I). In the base isjournaled the mainshaft 2 operating the lovers 3 of the operatingmechanism carried by the head frame. The base 'A may be supported on anysuitable foundation such as the timber frame E illustrated. The base Ais a rectangular metal shell having top and bottom flanges 4 and 5 andwalls 6 carrying the shaft 2 journaled' in boxes 7.' Ribs 8 are formedin the base to support the flanges 4 and 5 under the pillars andbearings. The bearing points of the shaft are formed with annularchannels 9 separatingcylindrical bearings 10, 11 and 12, the diametersof the successive bearings decreasing toward the exterior of the frame.The box 7 fits the shafting and-has holes 13 for lubrication openinginto an oil cup 14 in the frame. A pulley 15 is fixed to the shaft 2 atone end and is supplied with a drive belt 16 from any suitable source ofpower. A small drive pulley 17 is fixed to the shaft near the largepulley.

The pillars B are formed with cylindrical shafts 20 and top and bottomflanges 21 and '22 adapted to be bolted to the adjacent structure bybolts 23. The pillars B rest upon the top flange 4. of the base A abovethe walls thereof. The head frame C is a substantially rectangular metalshell having side walls 25 and a bottom flange 26 resting on thetopflanges 21 of the pillars B. Ribs 27 carry the load from the wall tothe pil: lars. The upper part of the frameis arch shaped, open at thetop and formed with an upwardly extending neck having side walls 28 andend walls 29, which support the crushing jaws and their operating partshereinafter described. The neck walls 28 and 29 carry a flange 30extendin within and without the. walls, stiffening the latter andforming a support for the hopper D. The hopper D is an outwardlyexpanding rectangular rim resting on the flange 30 of the head frame andfixed thereto by set bolts 31, and fitted to hold a supply of rock abovethe jaws of the crusher.

I have shown a crusher having three crushing units which are similar inform and operation. The number of crushing units in no way effects myinvention, and may be increased or decreased as desired, in making themachine. In the crusher which I have illustrated, the opening in the topof the head frame is divided by two bridges 32 into three oblongopenings 33, 34.- and 35, substantially rectangular in form, lyingtransversely of the crusher. Against the end walls of said openings arefixed .the stationary jaws 36 of the crusher. These jaws are fixed tothe side Walls 28 of the neck of the crusher by bolts 37 which passthrough the walls into recesses 38 formed therein. The stationary jawshave their hearing against the walls 28 and each is formed with a medianlug'39, on its bearing face 40 lying in the recess 38 of the wall. Thelug has two forwardlyconverging plain surfaces 41 and 42 against whichrest the beveledfaces of the nuts 43 on the bolts 37. The pressure ofthe nuts a 'ainst the convergent faces of the lug 39 ho] s the jaw 36against the wall 28, and by increasing the pressure on one of the nutsand decreasing the pressure on the other, the jaw may be adjustedvertically on the neck wall. The lug is slotted vertically at 45 toreceive the body of the bolt and allow the vertical movement of the jawin adjusting it. The crushing face of the jaw is inclined toward thecenter line of the MINNEAPOLIS, MINNESOTA, ASSIGNOR T0 CARRIE A. SHOVE.

0F MINNEAPOLIS, MINNESOTA.

- Patented'July8,1 913.

crusher at an oblique angle which becomes more oblique in the lower partof the face and curves inward sharply at the lower extremity of theface. jaws 36 are cheek piecess46 fixed by stud bolts 47 to the bridges32 and the neck' walls to present removable surfaces protecting theseparts during operation of the crusher. On the center line of thecrusher, the bridges 32 and endwalls 29 of the neck are formed withupstanding, lugs 48 which const tute an open topped caring 50 for thegudgeons 49 of the operating levers 3. Longitudinal movement of thegudgeons in their bearings 50 is prevented by the partition walls 51rising above the lugs 48 at the ends of the gudgeons 49.

The operating levers 3 are massive metal bars of substantiallyrectangular cross sect-ion hanging vertical between the crusher jaws 36and oscillating transversely of the crusher on the gudgeons 49 restingin the open bearings 50. The upper end on the lever is provided with aloop 52 by which the lever may be raised or lowered into position. Thelower end of the lever is formed with a yoke 53 embracing an eccentric54 on the operating shaft by which it is oscillated. The lever haseconomy slots 55 in its shaftto lighten the structure. At the upper endof the lever, below the gudgeons, the faces of the lever lyinglongitudinally of the crusher diverge downwardly and are formed withdove-tail grooves 56 which are narrower at the bot-tom than at the topand lie longitudinally of the lever and into which fit correspondingtenons 57 on the active crushing jaws 58. Each of the jaws 58 is formedto fill substantially the space between the cheeks 46 of the openings33, 34, and 35 and has a crushing face 59; formed with an upper portion60 at an obli ue angle with the axis of the lever 3 and a ower portion61 curving back toward the lever. Each of the jaws 58 forms, with theopposed stationary jaw 36, a V shaped op of suitable dimensions may passto be crushed. The curve 61 at the bottom of the movable jaw is shapedto form with the curve 62 of the stationary jaw '36, a passage graduallynarrowing toward the bottom to allow the escape of material crushed tothe desired dimensions. The curve of the movcontinued above the curve ofthe and the upward adjustment of the stationary jaw narrows the aperture63 at the lowest point of the jaws, and produces a finer crushedproduct. By lowerin the fixed jaw 36 the aperture is widened an the sizeof the escaping fragments of material is increased.

The crushing faces of the opposed jaws are so designed that a graduallynarrowing aperture is formed in which the material is crushed by theaction of themovable jaw.

able aw is lower jaw,

At the sides of the fixed ening into which stone 7 This action isreduced by the oscillation of the lever 3 in t e bearings and is limitedby the cam 54 on the shaft 2. .The cam 54 is roportioned to produce alateral movement of substantially one-eightieth of the length of thelever 3 thus causing a very slightangular movement of the lever and anextremely slight transverse movement of the active crusher jaws 58 whichas described, lie near the fulcrum of the operating lever 3.

The cam 54 is formed integral with the 0 erating shaft 2 and has acylindrical sur ace 65 with beveled ends 66 extending to concentriccylindrical surfaces 67 of less diameter on either side of the cam,forming a broadly banded surface to which is fitted a split box 68 theparts of which are bolted together with bolts 69 at the top and bottomand slide on Babbitt bearings 70 in the yoke 53 of the lever 3. Thelower end of the yoke 53 is filled at the sides by blocks 71 havingupper ends 72 hollowed out to permit a considerable upward movement ofthe lever 3 upon the cam 54 in addition to that caused by the rotationof the shaft 2. Below the block 71 is a strap 73 to which the block 71is attached and which is itself attached to the ends of the yoke 53 bybolts 74. A slight motion of the lever yoke is provided-for by spaces 75between the cam 54 and the inclosing sides 76 of the yoke 53. Betweenthe operating levers 3 fly wheels 80 are fixed to the shaft 2 adjacentto the levers 3.

Directly below crushingjaws are each side of the levers to the end onthe head frame C where they empty through the end wall into aspout 82for the delivery of the crushed material. The material falling throughthe apertures 63 drops into the troughs 81 and is transferred to the endof the machine by screw conveyers 83, the shafts 84 of which passthrough the wall of the head frame and are operated by gears 85 fixedthereon. The gears 85 of the two screws 83 are driven by a pinion 86journaled on a stud shaft 87 fixed in the wall of the head frame C. Thepinion 86 is driven by a pulley 88 and belt 89 from the pulley 17 on theoperating shaft 2. By removing the longitudinal trough 81 and placing atransverse tro h 9.0 under each pair 'of crushing jaws, ifierentmaterials and sizes may be crushed simultaneously in the crusher. Thebearin s 50 are protected by a hood 91 which exten s longitudinally ofthe crusher restin on the br1dges 32 and the end walls of t e neck.

In operation material to be crushed is introduced into the hop r D in asufiiciently divided state to entert e top of the aperture between thecrushing jaws. The operating shaft being rotated, the operating leversare oscillated by the cams on the shaft and the the apertures 63 of the53 longitudinally of the shaft troughs 81 extending on A caught betweenthem and the fixed jaws 36,

is either crushed or spawled to the slightly lessened diameter requiredto meet the move ment of the jaws. Upon reversing the motion of thelevers, the material so crushed or spawled is freed to fall to a pointwhere it again fills the space between the open jaws, at which point itis again subjected to the slight crushing movement of the active jaws ontheir next stroke. It will be readily understood that the operationiscarried on by a succession of short crushing movements produced byslight forces acting upon levers having relatively long power arms. Therapid succession of short strokes is more eifectlve in crushing thanlonger slower strokes, and is very much more economical of power. As thematerial passes from the crushing jaws it is caught in the conveyortroughs and carried by the act-ion of the screw to the exterior of thecrusher.

The introduction of any non-crushable material like pieces of iron,between the jaws of my crusher cannot injure the machine. Since thelever carrying the active jaws is free to rise a considerable distancefrom between the stationar jaws thus enlarging the aperture between t ejaws to allow the passage of the non-crushable material. Or if thematerial is too large to pass'out, the lever will hang in its raisedposition until the difliculty is noted and corrected.-

In accordance with the patent statutes I have described the principlesof operation of my invention together with the ap aratus which I nowconsider to represent t e best embodiment thereof but I desire tohave itunderstood that the construction shown is only illustrative and that theinvention can be carried out by other means and applied to uses otherthan those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protectby Letters Patent is:'-

1. In a crusher, a supporting frame, a

suspended in an open journal bearing to oscillate between said faces andabove them,

said oscillating member having crushing faces opposed to the crushingfaces on the wall of said passage and adapted to have its weight andmomentum directed downward on the material on each of said faces in thewall of said passage alternately, and means for oscillating said member.

In testimony'whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

CORNELIUS KIMPLEN.

